package com.heima.Controller;

import com.heima.domain.Book;
import com.heima.domain.Code;
import com.heima.domain.Result;
import com.heima.Service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@RestController
@RequestMapping("/books")
public class BookController {

    @Autowired
    private BookService bookService;

    @PostMapping
    public Result save(@RequestBody Book book) {
        boolean flag = bookService.save(book);
        return new Result(flag? Code.SAVE_OK:Code.SAVE_ERR,flag);
    }

    @PutMapping
    public Result update(@RequestBody Book book) {
        boolean flag = bookService.update(book);
        return new Result(flag? Code.UPDATE_OK:Code.UPDATE_ERR,flag);
    }

    @DeleteMapping("/{id}")
    public Result delete(@PathVariable Integer id) {
        boolean flag = bookService.delete(id);
        return new Result(flag?Code.DELETE_OK:Code.DELETE_ERR,flag);
    }

    @GetMapping("/{id}")
    public Result getById(@PathVariable Integer id) {
        //手动添加一个错误信息
        if(id==1){
            int i = 1/0;
        }
        Book book = bookService.getById(id);
        Integer code=book==null?Code.GET_ERR:Code.GET_OK;
        String msg = book!=null? "":"数据查询失败,请重试!";
        return new Result(code,book,msg);

    }

    @GetMapping
    public Result getAll() {
        List<Book> bookList = bookService.getAll();
        Integer code=bookList==null?Code.GET_ERR:Code.GET_OK;
        String msg = bookList!=null? "":"数据查询失败,请重试!";
        return new Result(code,bookList,msg);
    }
}
